What evidence do historians use to show that the maya had advanced knowledge of astronomy?
huge temples aligned to the four cardinal directions.
the maya developed a 365-day solar calendar.
the maya had identified all the planets in our solar system.
maya priests invented the concept of zero.

What is the significance of the battle of saratoga? a. the defeat at saratoga allowed the british to invade new england by land. b. after the defeat at saratoga france refuse to sign a treaty with the united states. c. the british won a decisive victory at saratoga. d. after the victory at saratoga france gave open support to the united states including arms money and ships.